... , Parking Lot, KTV, Club, Bar , Hospital3. How to use it?When customer wait the table in line the waiter ... please put the it in the transmitter to chargeagain.4. How many pcs pagers can work with ... the transmitter?Each transmitter can work with 16 pcs pagers, suitable for ... separate, SU-160 transmitter also is chargerThe coverage for SU-200 is 500M, SU-160 System coverage ...